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Does Coffee Open Blood Vessels? [Solved]

Caffeine tends to constrict blood vessels, which would seem to cause pain by cutting off blood flow.May 1, 2010

Vascular Effects of Caffeine

John Higgins, University of Texas Health Sciences Center.

Neuroscientist: How Caffeine Works and What It Does to Your Body

Andrew Huberman explains what

Is Caffeine Bad For Blood Flow Circulation

= Is